/Engine/Source/Runtime/Engine/Classes/GameFramework/ProjectileMovementComponent.h
Applies bounce logic if enabled to affect velocity upon impact (usingComputeBounceResult()), or stops the projectile if bounces are not enabled or velocity is below BounceVelocityStopSimulatingThreshold. Triggers applicable events (OnProjectileBounce).
virtual void HandleImpact ( const [FHitResult](API\Runtime\Engine\Engine\FHitResult) & Hit, float TimeSlice, const FVector & MoveDelta )